Diencephalon Flashcards
Borders
Located b/t the telecephalon &mesencephalon and b/t the interventricular foramen & post. commissure
Epithalamus
Pineal body (epiphysis cerenri) Habenular trigone Medullary stria of thalamus Tela choroidea and choroid plexus of 3rd ventricle Tenia thalami
Habenular trigone
Small depressed triangular area. Borders:
Med.: tenia thalami + Habenular commissure
Lat.: thalamus
Post.: sup. colliculus
Thalamus
Pulvinar Metathalamus: -Med. geniculate body(MGB) -Lat. geniculate body (LGB) Ant. tubercle Interthalamuc adhesion (massa intermedia)
MGB & LGB
MGB: part of the auditory system, communicates with the inf. colliculus voa the brachium of inf. colliculus.
LGB: part of visual system, communicates with the sup. colliculus via its brachium
What separates the hypothalamus and thalamus?
Hypothalamic sulcus
Hypothalamus
Optic chiasma
Mamillary bodies
Infundibulum
Tuber cinereum: hollow eminence of gray matter situated b/t mamillary bodies and optic chiasma
Subthalamus
Lies ventral to the thalamus and lat. to the hypothalamus, not visible in midsagittal section
- Subthalamic nucleus of Luys
- Zona incerta and fields of Forel